CN204141595U - A kind of thermal analysis apparatus for repairing organic polluted soil - Google Patents
A kind of thermal analysis apparatus for repairing organic polluted soil Download PDFInfo
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- CN204141595U CN204141595U CN201320725643.3U CN201320725643U CN204141595U CN 204141595 U CN204141595 U CN 204141595U CN 201320725643 U CN201320725643 U CN 201320725643U CN 204141595 U CN204141595 U CN 204141595U
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- polluted soil
- analysis apparatus
- thermal analysis
- organic polluted
- combustion chamber
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Abstract
The utility model discloses a kind of thermal analysis apparatus for repairing organic polluted soil, it comprises: feed unit, fuel element and dust removing units, and described feed unit connects fuel element, and described fuel element connects dust removing units.The utility model has the advantages that: on the one hand, effectively can remove the organic pollution in Polluted Soil, and harmful burning byproduct can not be produced; On the other hand, can realize repairing organic polluted native kiloton every day, the Polluted Soil after reparation is with solid-state eliminating and reach standard of landfill, effectively prevent liquid state or molten residue is severe to lining wear, extends the service life of device.
Description
Technical field
The utility model relates to a kind of thermal analysis apparatus for repairing organic polluted soil.
Background technology
Contaminated soil remediation and Study on treatment technology were started in for 20 century 70 later stages, and as the material base that the mankind depend on for existence, soil is the important component part of human ecological environment.Along with the development of social modernization, Polluted Soil has become and threatens the mankind to depend on for existence a large killer of environment.In numerous organic pollution, polycyclic aromatic hydrocarbon (PAHs) is a class persistence organic pollutant, have higher carcinogenic, teratogenesis, mutagenicity, cause larger threat to ecological environment security and human health, therefore most countries is classified as priority pollutants all.In environment, the PAHs overwhelming majority accumulates in soil, and they may move in other surrounding mediums in a suitable manner, expands pollution range and changes route of exposure, also can be accumulated in human body by biological chain transfer simultaneously.
Method at present for the Polluted Soil of renovation of organic pollution mainly contains: (1) soil washs, and with suitable flushing flow rate contact soil, is extracted in liquid phase by pollutant, then processes flushing liquor separately, may be used on the spot or the soil treatment in strange land.But the soil that particle is thinner is not suitable for adopting the method, and its removal efficiency is not very high simultaneously.And the process of flushing liquor adds follow-up link and the cost of Polluted Soil process.(2) carry out a biological disposal upon, it is simple that the method has processing method, and cost is lower, but treatment effeciency is lower, is not fine to some degree of depth contaminated soil effects simultaneously.(3) burning disposal, in check burning disposal is a kind of effective ways destroying from soil or take out organic pollution.But soil burns may produce harmful byproduct.These byproducts may not be totally destroyed from pyrolytic organic in soil or pollutant.Rotary kiln is mainly used in the burning of industrial refuse, and general scale is less, adopts oil spout combustion-supporting, and residue is got rid of with liquid or melting form, and liquid state or molten residue are to lining wear severity.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of thermal analysis apparatus for repairing organic polluted soil, it not only effectively can remove the organic pollution in Polluted Soil, and can effectively prevent liquid state or molten residue to lining wear, to extend service life.
For achieving the above object, the technical solution of the utility model is achieved in that a kind of thermal analysis apparatus for repairing organic polluted soil, it is characterized in that, comprise: feed unit, fuel element and dust removing units, described feed unit connects fuel element, and described fuel element connects dust removing units.
Further, described fuel element comprises: the first combustion mechanism and the second combustion mechanism.
Further, the first described combustion mechanism comprises the first burner and the first combustion chamber.
Further, the burner that the first described burner is is fuel with coal dust, oil spout, natural gas; The first described combustion chamber comprises cement rotary kiln.
Further, described cement rotary kiln comprises: kiln body and transmission device, and described kiln body is the steel cylinder body of horizontal inclined setting.
Further, the second described combustion mechanism comprises the second burner and the second combustion chamber.
Further, the second described bottom of combustion chamber is provided with a discharging opening with air valve door, and described discharging opening connects an airtight grate-cooler, piles canopy when described grate-cooler afterbody connects zero.
Further, the second described burner is oxygen-enriched burner; The second described combustion chamber comprises a combustion furnace, and this combustion furnace is vertically disposed cylinder, and the bottom of this combustion furnace is provided with lime-ash burning-out zone.
Further, described dust removing units comprises cyclone dust collectors, the top of the second combustion chamber described in these cyclone dust collectors connect.
Further, described dust removing units also comprises quench tower, its connect described in cyclone dust collectors, the bottom of described quench tower is also connected with sack cleaner.
The utility model has following beneficial effect relative to prior art:
The first, device comprises fuel element, and fuel element is provided with the first combustion mechanism and the second combustion mechanism, and wherein, the first combustion mechanism comprises the first burner and the first combustion chamber, and the second combustion mechanism comprises the second burner and the second combustion chamber.First combustion chamber is in the atmosphere of shortcoming oxygen, and can realize the anaerobic pyrolysis gasification that in Polluted Soil, organic matter is passable, the temperature general control of the first combustion chamber is at 300-800 DEG C; Organic matter after gasification carries out oxygen-enriched combusting after entering the second combustion chamber, the temperature of the second combustion chamber controls between 800-1200 DEG C, and gas residence time is greater than 2 seconds, makes the organic matter in flue gas be able to abundant decomposition, decomposition efficiency, more than 99.99%, guarantees the thorough destruction of pollutant.
The anoxic of the first combustion chamber of the second, first combustion mechanism and lower-temperature atmosphere, produce exhaust gas volumn less, effectively reduce dust, effectively reduce the destruction of pyrolytic process to soil simultaneously, ensure that the performances such as the plasticity of the soil after reparation, biologically active are up to standard.And, adopt cement rotary kiln as the first combustion chamber, because the general internal diameter of cement kiln is comparatively large, length is longer, so the organic matter in Polluted Soil can obtain sufficient pyrolytic gasification, considerably increase the disposal amount of Polluted Soil simultaneously, the Polluted Soil disposing upper kiloton every day can be realized, in addition, due to Polluted Soil pyrolysis under anoxic conditions, valuable metal is not oxidized, and the metal such as Qi Zhongtong, iron is not oxidizable generates the catalyst promoting that dioxin is formed.
3rd, device comprises dust removing units, the quench tower arranged can tackle the hidden danger of bioxin and the bagroom that adequately protects effectively, and, dust removing units connects the second combustion mechanism, and the second combustion chamber of the second combustion mechanism have employed oxygen-enriched burner, greatly can not only improve the organic decomposition efficiency of gasification, improve the utilization ratio of heat energy, and, the discharge of tail gas can be made to be reduced to and to adopt less than 1/5th of common burning mode, finally, Polluted Soil after reparation is with solid-state eliminating and reach standard of landfill, effectively prevent liquid state or molten residue severe to lining wear, extend the service life of device.
Accompanying drawing explanation
Fig. 1 is the specific embodiment structural representation of the thermal analysis apparatus for repairing organic polluted soil of the present utility model;
Fig. 2 is the operation principle schematic diagram of Fig. 1 shown device.
In figure, each Reference numeral is illustrated as: 1-Polluted Soil feed hopper, 2-air inlet, 3-second combustion chamber, 4-second burner, 5-cyclone dust collectors, 6-quench tower, 7-sack cleaner, the emptying chimney of 8-tail gas, 9-tail exhaust blower, 10-piles canopy temporarily, the airtight grate-cooler of 11-, 12-with the discharging opening of air valve door, 13-Rotary Kiln Driving System device, 14-cement rotary kiln, 15-first burner, 16-pusher.
Detailed description of the invention
For the ease of the further understanding to utility model, below in conjunction with accompanying drawing detailed description of the invention of the present utility model done and describe in detail further.
Fig. 1 is the specific embodiment structural representation of the thermal analysis apparatus for repairing organic polluted soil of the present utility model, this device comprises: feed unit, fuel element and dust removing units, described feed unit connects fuel element, and described fuel element connects dust removing units.
Preferably, described fuel element comprises: the first combustion mechanism and the second combustion mechanism.Wherein, the first combustion mechanism mainly comprises: the first burner 15 and the first combustion chamber.The burner that the first described burner 15 is is fuel with coal dust, oil spout, natural gas; The first described combustion chamber comprises cement rotary kiln 14.
As shown in the figure, cement rotary kiln 14 comprises: kiln body and transmission device 13, and cement rotary kiln 14 is as the first combustion chamber, and in a particular embodiment, kiln body is a steel horizontal cylinder body, and inside serves as a contrast with refractory material, and tilting is arranged, turns round at a slow speed.
Preferably, the kiln hood of cement rotary kiln 14 arranges Polluted Soil feed hopper 1, air inlet 2, first burner 15, and pusher 16 etc., what arrange at the middle part of cement rotary kiln 14 is described transmission device 13, and the kiln tail of described cement rotary kiln 14 is connected with the bottom of the second combustion chamber 3.
Second combustion mechanism of the utility model device mainly comprises: the second burner 4 and the second combustion chamber 3.The second described burner 4 is oxygen-enriched burner; The second described combustion chamber 3 comprises a combustion furnace, and this combustion furnace is vertically disposed cylinder, and the bottom of this combustion furnace is provided with lime-ash burning-out zone.
Preferably, the main body of the second combustion chamber 3 one is arranged vertically the longer cylinder of flow process.The bottom of the second combustion chamber 3 is a discharging opening 12 with air valve door, and described discharging opening 12 connects the airtight grate-cooler 11 that has powerful refrigerating function, piles canopy 10 when grate-cooler 11 afterbody receives zero.
The dust removing units of the utility model device comprises deduster, preferably, described deduster comprises: cyclone dust collectors 5 and sack cleaner 7, the top of the second combustion chamber 3 is provided with smoke combustion district, and oxygen-enriched burner 4 is housed, the top of the second combustion chamber 3 is connected to cyclone dust collectors 5, and described cyclone dust collectors 5 are connected with quench tower 6.
Preferably, described quench tower 6 equips with the chilling of spray equipment, and for the temperature of high-temperature tail gas is dropped to about 200 DEG C, the bottom of described quench tower 6 is connected to sack cleaner 7, being mainly used in of described sack cleaner 7 removes tail dust wherein, Xi Fu bioxin simultaneously.Preferably, described sack cleaner 7 receives tail exhaust blower 9 by heat-resisting pipeline, is finally connected to the emptying chimney 8 of tail gas.
Fig. 2 is the operation principle schematic diagram of the thermal analysis apparatus for repairing organic polluted soil of the present utility model, as shown in the figure, Polluted Soil to be repaired is through screening, broken, after granulation, feed hopper 1 is entered through bucket elevator, push in cement rotary kiln 14 by pusher 16, turn round stirring with cement rotary kiln 14 to stir, the air quantity entered in kiln is controlled by air inlet 2, temperature in cement rotary kiln 14 is controlled between 300-800 DEG C by the first burner 15, Polluted Soil is made to complete drying under oxygen debt condition, pyrolytic gasification and partial combustion processes, then, Polluted Soil after pyrolysis, organic steam enters the second combustion chamber 3 by the kiln tail of cement rotary kiln 14.
Polluted Soil through repairing enters the bottom of the second combustion chamber 3, through the discharging opening 12 with air valve door, enters airtight grate-cooler 11, fully cools in transport process, finally enters interim heap canopy 10, so that the transport in later stage and security landfill.
Organic steam and partial combustion products enter the top of the second combustion chamber 3, and organic steam is under the effect of oxygen-enriched burner 4, and in the second combustion chamber 3, abundant high temperature after-flame, makes the poisonous substances such as formation bioxin decompose completely in secondary high-temperature region simultaneously.In a particular embodiment, the temperature of the second combustion chamber 3 remains between 800-1200 DEG C, requires that organic steam is greater than 2 seconds in the time of staying of the second combustion chamber 3 simultaneously.
Then, high-temp waste gas after Thorough combustion enters cyclone dust collectors 5 from the top of the second combustion chamber 3, then quench tower 6 is entered, high-temp waste gas drops to about 200 DEG C in quench tower 6, then sack cleaner 7 is entered, waste gas through bag-type dusting reaches discharge standard, then enters the emptying chimney 8 of tail gas through tail exhaust blower 9 and enter air.
The above, be only preferred embodiment of the present utility model, is not intended to limit protection domain of the present utility model.
Claims (10)
1. for a thermal analysis apparatus for repairing organic polluted soil, it is characterized in that, comprising: feed unit, fuel element and dust removing units, described feed unit connects fuel element, and described fuel element connects dust removing units.
2. the thermal analysis apparatus for repairing organic polluted soil according to claim 1, is characterized in that, described fuel element comprises: the first combustion mechanism and the second combustion mechanism.
3. the thermal analysis apparatus for repairing organic polluted soil according to claim 2, is characterized in that, the first described combustion mechanism comprises the first burner and the first combustion chamber.
4. the thermal analysis apparatus for repairing organic polluted soil according to claim 3, is characterized in that, the burner that the first described burner is is fuel with coal dust, oil spout, natural gas; The first described combustion chamber comprises cement rotary kiln.
5. the thermal analysis apparatus for repairing organic polluted soil according to claim 4, is characterized in that, described cement rotary kiln comprises: kiln body and transmission device, and described kiln body is the steel cylinder body of horizontal inclined setting.
6. the thermal analysis apparatus for repairing organic polluted soil according to claim 2,3,4 or 5, is characterized in that, the second described combustion mechanism comprises the second burner and the second combustion chamber.
7. the thermal analysis apparatus for repairing organic polluted soil according to claim 6, it is characterized in that, the second described bottom of combustion chamber is provided with a discharging opening with air valve door, and described discharging opening connects an airtight grate-cooler, piles canopy when described grate-cooler afterbody connects zero.
8. the thermal analysis apparatus for repairing organic polluted soil according to claim 7, is characterized in that, the second described burner is oxygen-enriched burner; The second described combustion chamber comprises a combustion furnace, and this combustion furnace is vertically disposed cylinder, and the bottom of this combustion furnace is provided with lime-ash burning-out zone.
9. the thermal analysis apparatus for repairing organic polluted soil according to claim 8, is characterized in that, described dust removing units comprises cyclone dust collectors, the top of the second combustion chamber described in these cyclone dust collectors connect.
10. the thermal analysis apparatus for repairing organic polluted soil according to claim 9, is characterized in that, described dust removing units also comprises quench tower, its connect described in cyclone dust collectors, the bottom of described quench tower is also connected with sack cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725643.3U CN204141595U (en) | 2013-11-18 | 2013-11-18 | A kind of thermal analysis apparatus for repairing organic polluted soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725643.3U CN204141595U (en) | 2013-11-18 | 2013-11-18 | A kind of thermal analysis apparatus for repairing organic polluted soil |
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| CN204141595U true CN204141595U (en) | 2015-02-04 |
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| CN201320725643.3U Expired - Fee Related CN204141595U (en) | 2013-11-18 | 2013-11-18 | A kind of thermal analysis apparatus for repairing organic polluted soil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862259A (en) * | 2017-04-01 | 2017-06-20 | 安徽蓝鼎环保能源科技有限公司 | A kind of soil remediation equipment |
| CN110375316A (en) * | 2019-07-22 | 2019-10-25 | 鸿灌环境技术有限公司 | A kind of soil difficulty volatile organic compounds restorative procedure |
-
2013
- 2013-11-18 CN CN201320725643.3U patent/CN204141595U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106862259A (en) * | 2017-04-01 | 2017-06-20 | 安徽蓝鼎环保能源科技有限公司 | A kind of soil remediation equipment |
| CN110375316A (en) * | 2019-07-22 | 2019-10-25 | 鸿灌环境技术有限公司 | A kind of soil difficulty volatile organic compounds restorative procedure |
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| DD01 | Delivery of document by public notice |
Addressee: Beijing wheat Kate Science and Technology Ltd. Document name: Notification to Go Through Formalities of Registration |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20151118 |
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| EXPY | Termination of patent right or utility model |